package com.aat.dxfy.utils;

import java.io.UnsupportedEncodingException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HexUtils {

	public static final Logger log = LoggerFactory.getLogger(HexUtils.class);
	
	private static String hexString = "0123456789ABCDEF";

	public static String encodeCN(String data) {
		byte[] bytes;
		try {
			bytes = data.getBytes("utf-8");
			StringBuilder sb = new StringBuilder(bytes.length * 2);

			for (int i = 0; i < bytes.length; i++) {
				sb.append(hexString.charAt((bytes[i] & 0xf0) >> 4));
				sb.append(hexString.charAt((bytes[i] & 0x0f) >> 0));
			}
			return sb.toString();
		} catch (UnsupportedEncodingException e) {
			log.error("dycm-search.HexUtils.encodeCN() : "+e); 
			e.printStackTrace();
		}
		return "";
	}

	public static String encodeStr(String data) {
		String result = "";
		byte[] bytes;
		try {
			bytes = data.getBytes("gbk");
			for (int i = 0; i < bytes.length; i++) {
				result += Integer.toString((bytes[i] & 0xff) + 0x100, 16).substring(1);
			}
			return result;
		} catch (UnsupportedEncodingException e) {
			log.error("dycm-search.HexUtils.encodeStr() : "+e); 
			e.printStackTrace();
		}
		return "";
	}

	/**
	 * 判定是否为中文汉字
	 * 
	 * @param data
	 * @return
	 */
	public static boolean isCN(String data) {
		boolean flag = false;
		String regex = "^[\u4e00-\u9fa5]*$";
		if (data.matches(regex)) {
			flag = true;
		}
		return flag;
	}

	public static String getHexResult(String targetStr) {
		StringBuilder hexStr = new StringBuilder();
		int len = targetStr.length();
		if (len > 0) {
			for (int i = 0; i < len; i++) {
				char tempStr = targetStr.charAt(i);
				String data = String.valueOf(tempStr);
				if (isCN(data)) {
					hexStr.append(encodeCN(data));
				} else {
					hexStr.append(encodeStr(data));
				}
			}
		}
		return hexStr.toString();
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		System.out.println(getHexResult("北京市"));
	}
}